ASTR 241 is a rigorous, calculus-based introduction to Solar System astrophysics. In this course, basic concepts of classical mechanics and thermodynamics are used to understand the structure and evolution of the Solar System. Historically, the Solar System was the original proving ground for much of Newtonian dynamics, and it provides many opportunities to apply mechanics and thermodynamics on a grand scale. In addition to introducing students to the study of the Solar System, ASTR 241 will deepen their understanding and ability to use basic physical concepts. We anticipate that Astr 241 will become the first course in a sequence leading to an astrophysics major.